交换机S5024P重置密码

老版本的S5120-28P-LI 所有登陆界面都设置了密码，但是忘记了登陆密码。BOOTROM界面同样也设置了密码，尴尬的是这个密码也忘记了。在这种情形下，难道只有返厂处理？NO，不需要这么麻烦，当然有别的办法。

可以通过升级设备的bootware版本，升级成功之后，新版本就会没有密码，此时下载官网最新的版本并设置为主启动模式，如果不升级官网最新的软件版本，启动后还是会使用以前老的软件版本。

具体操作方法详见下文：

1、老版本比如136的情况下，设置了BootRom需要密码才能进入，界面如下

Press Ctrl-B to enter Extended Boot menu...0

Please input BootRom password:

Wrong password,Please input password again:

Wrong password,Please input password again:******

   BOOT MENU

1. Download application file to flash

2. Select application file to boot

3. Display all files in flash

4. Delete file from flash

5. Modify BootRom password

6. Enter BootRom upgrade menu

7. Skip current system configuration

8. Set BootRom password recovery

9. Set switch startup mode

0. Reboot

2、升级方法：

上电重启的时候，按住ctrl+D，选择全部升级，串口升级：

Enter your choice(0-9): 0

Starting......

    ************************************************************************

    *                                                                      *

    *                     BASIC BOOTROM, Version 136                       *

    *                                                                      *

    ************************************************************************

   BASIC BOOT MENU

1. Update full BootRom

2. Update extended BootRom

3. Update basic BootRom

4. Boot extended BootRom

0. Reboot

Enter your choice(0-4): 1

Please select your download baudrate:

1.  9600

2.  19200

3.  38400

4.  57600

5.* 115200

0.  Return to boot menu

Enter your choice(0-5):

Download baudrate is 115200 bps

Please change the terminal&＃39;s baudrate to 115200 bps and select XMODEM protocol

Press enter key when ready

3、把串口接到波特率为115200的的终端上，xmodem模式传递新的179bootware

Now please start transfer file with XMODEM protocol

If you want to exit, Press <Ctrl+X>

Loading ...CCCCCCCCCCCCCC

Starting xmodem transfer.  Press Ctrl+C to cancel.

Transferring S5120SI_2900-9-BTM-179.btm...

  100%     279 KB       7 KB/sec    00:00:39       0 Errors 

Will you Update Basic BootRom? (Y/N):Y

Updating Basic BootRom...Done!

Updating extended BootRom? (Y/N):Y

Updating extended BootRom...Done!

Please change the terminal&＃39;s baudrate to 115200 bps.

Press enter key when ready

   BASIC BOOT MENU

1. Update full BootRom

2. Update extended BootRom

3. Update basic BootRom

4. Boot extended BootRom

0. Reboot

Enter your choice(0-4): 0

4、这个地方断电即可，然后再把串口的波特率调整回9600。注意，不断电的话，如果用户切换波特率比较慢的话，app启动的时候，又会自动更新为老的bootware的版本了，刚才的操作就白做了。

********************************************************************************

*                                                                              *

*                     H3C S5120-9P-SI BOOTROM, Version 179                     *

*                                                                              *

********************************************************************************

Copyright (c) 2004-2017 New H3C Technologies Co., Ltd.

Creation Date       : Apr  5 2017

CPU L1 Cache        : 32KB

CPU Clock Speed     : 333MHz

Memory Size         : 128MB

Flash Size          : 128MB

CPLD Version        : 001

PCB Version         : Ver.A

Mac Address         : 00E0FC003620

the normal and back basic is not equal, update back basic....

the normal and back extend is not equal, update back extend....

Press Ctrl-B to enter Extended Boot menu...0

BootRom password: Not required. Please press Enter to continue.

Password recovery capability is enabled.

5、新版本都没有密码了，进去之后，就下载官网最新的软件版本并设置为主启动模式

   BOOT MENU

1. Download application file to flash

2. Select application file to boot

3. Display all files in flash

4. Delete file from flash

5. Restore to factory default configuration

6. Enter BootRom upgrade menu

7. Skip current system configuration

8. Reserved

9. Set switch startup mode

0. Reboot

Ctrl+F: Format File System

Ctrl+P: Skip Super Password

Ctrl+R: Download application to SDRAM and Run

Ctrl+Z: Access EXTEND-ASSISTANT MENU

Ctrl+C: Display Copyright

Enter your choice(0-9):

Are you sure you want to format the file system? Yes or No (Y/N):Y

Formatting flash.........Done!

   BOOT MENU

1. Download application file to flash

2. Select application file to boot

3. Display all files in flash

4. Delete file from flash

5. Restore to factory default configuration

6. Enter BootRom upgrade menu

7. Skip current system configuration

8. Reserved

9. Set switch startup mode

0. Reboot

Ctrl+F: Format File System

Ctrl+P: Skip Super Password

Ctrl+R: Download application to SDRAM and Run

Ctrl+Z: Access EXTEND-ASSISTANT MENU

Ctrl+C: Display Copyright

Enter your choice(0-9):

在升级bootware版本时，一定要注意对应的产品型号，不要升级错误